HORTICULTURAL BULLETINS. 



347 



■which appears to be restricted principally to certain sorts— the serrate-leaved vari- 

 ties. It is seldom troublesome except on the Pacific coast. In the eastern states 



Fig. 12,— Pupa of the pin 

 borer. Side view, 20 

 diam. (Forbes.) 



Fig 13.— Pin borer beetle, 2 

 diam. (Forbes.) 



Fig. 11.— Larva of the pin 

 borer (Scnlutus 7'uaulosus), 

 enlarged 23 diam. (Forbes.) 



Fig. 14.— Branch of peach, 

 showing perforations of 

 the pin borer, natural^size. 

 (Forbes.) 



Fig. 15.— Denuded branch showing 

 breeding chambers, larvse chan- 

 nels, and pupa chambers of the 

 borer, natural size. (Forbes.) 



the only remedy yet known is to pull out the affected varieties and plant others. 

 Peach curl (fig, 7) is a disease distorting the folige and causing it to fall in spring. 



